CET PMC-230, User Manual, Page: 24 / 37

CET Electric Technology
17
5.5.3 Max. Demand of Last Month (Before Last Reset)
Register Property Description Format Scale Unit
3600~3605 RO U
See
Table 5-8 Demand Data
Structure
x1
U
3606~3611 RO I A
3612~3617 RO P kW
3618~3623 RO Q kvar
3624~3629 RO S kVA
Table 5-7 Max. Demand of Last Month
5.5.4 Demand Data Structure
Offset Format Description
+0
High-order Byte
INT16
Year – 2000 (0-37)
Low-order Byte Month (1-12)
+1
High-order Byte
INT16
Day (1-31)
Low-order Byte Hour (0-23)
+2
High-order Byte
INT16
Minute (0-59)
Low-order Byte Second (0-59)
+3 - INT16 Millisecond (0 to 999)
+4~+5 - Float Record Value
Table 5-8 Demand Data Structure
5.6 Logs
5.6.1 Monthly Energy Log
Register Property Description Format Scale Unit
0980 RW Month
1
INT16 0 to 12
0981 RO
High-order Byte: Year (0-37)
Low-order Byte: Month (1-12)
INT16
Time Stamp
2
(20YY/MM/DD
HH:MM:SS)
0982 RO
High-order Byte: Day (1-31)
Low-order Byte: Hour (0-23)
INT16
0983 RO
High-order Byte: Minute (0-59)
Low-order Byte: Second (0-59)
INT16
0984 RO kWh Import INT32
x0.01
kWh
0986 RO kWh Export INT32
0988 RO kvarh Import INT32
kvarh
0990 RO kvarh Export INT32
0992 RO kVAh INT32 kVAh
0994 RO kWh Import of T1
3
INT32
kWh
0996 RO kWh Export of T1
3
INT32
0998 RO kvarh Import of T1
3
INT32
kvarh
1000 RO kvarh Export of T1
3
INT32
1002 RO kVAh of T1
3
INT32 kVAh
1004~1022 RO … INT32 …
1024 RO kWh Import of T4
3
INT32
kWh
1026 RO kWh Export of T4
3
INT32
1028 RO kvarh Import of T4
3
INT32
kvarh
1030 RO kvarh Export of T4
3
INT32
1032 RO kVAh of T4
3
INT32 kVAh
Table 5-9 Monthly Energy Log
Notes:
1. This register represents the Month when it is read. To read the Monthly Energy Log, this register must be first written to indicate to
the PMC-230 which log to load from memory. The range of this register is from 0 to 12, which represents the Present Month and the
Last 12 Months. For example, if the current month is 2016/10, “0” means 2016/10, “1” means 2016/09, “2” means 2016/08, ……”12”
means “2015/10”.
2. For each Monthly Energy Log, the time stamp shows the exact self-read time (20YY/MM/DD HH:MM:SS) when the log was recorded.
For the Monthly Energy Log of the Present Month, the time stamp shows the current time of the meter because the present month is
not yet over.
3. T1 to T4 means Tariff 1 to Tariff 4.